Text and Data Mining valid from 2018-11-29
Received: 1 August 2018
Accepted: 10 November 2018
First Online: 29 November 2018
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: The data set was approved by Louisiana State University Institutional Review Board (IRB# 3529). This work was conducted in accordance with general ethical standards.
: Add Health participants provided written informed consent for participation in all aspects of Add Health in accordance with the University of North Carolina School of Public Health Institutional Review Board guidelines.